carbamate Syllabification: (car·ba·mate)Pronunciation: /ˈkärbəˌmāt/Definition of carbamate noun Chemistry a salt or ester containing the anion NH2COO or the group OOCNH2, derived from the hypothetical compound carbamic acid. Origin: mid 19th century: from carbamic (from carbo- + amide + -ic) + -ate1carbamate in other Oxford dictionaries Definition of carbamate in the British & World English dictionary